Question

foreach ($myassignment->result() as $e){
    $courseId=$e->courseId;
}

$getassign=$this->Usermodel->getmysubassignment($courseId);

$ myassignment中有两个结果。我需要2个课程，但我只得到一个。如何获得第二个。

Answer 1

将值存储在如下数组中：

$courseId = [];
foreach ($myassignment->result() as $e){
    $courseId[] = $e->courseId;
}

$getassign1 = $this->Usermodel->getmysubassignment($courseId[0]);
$getassign2 = $this->Usermodel->getmysubassignment($courseId[1]);
.
.
.

Answer 2

您的分配代码位于循环的一侧

foreach ($myassignment->result() as $e){
    $courseId=$e->courseId;
$getassign[]=$this->Usermodel->getmysubassignment($courseId);
}

Answer 3

foreach ($myassignment->result() as $e){
    $courseId[]=$e->courseId;
}

$getassign=$this->Usermodel->getmysubassignment($courseId[0]);
$getassign=$this->Usermodel->getmysubassignment($courseId[1]);

试试这个

Answer 4

$ courseId只能容纳一个变量。您使用第二个条目覆盖$ myassignment-＆gt; result（）中的第一个条目。改为使用数组：

foreach ($myassignment->result() as $e){
    $courseId[]=$e->courseId;
}

Answer 5

foreach ($myassignment->result() as $e){
    $courseId[]=$e->courseId;
}
for($i=0;$i<2;$i++){
$getassign=$this->Usermodel->getmysubassignment($courseId[$i]);
}

使用for循环（如果您希望以后增加结果，可以通过对此for循环进行一次更改来实现）

只得到foreach循环的第一个结果，我也需要第二个结果

5 个答案: